Patents by Inventor Donavan Brown

Donavan Brown has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Publication number: 20220251913
    Abstract: For a side pocket mandrel that has a primary flow bore and an offset side pocket, a method for installing a guide sleeve begins with the step of compressing the guide sleeve to reduce an outer diameter of the guide sleeve. The method continues with the step of inserting the guide sleeve into a section of the primary flow bore that has a first inner diameter (D1). The method continues with the steps of allowing the guide sleeve to radially expand such that the outer diameter of the guide sleeve matches the first diameter, pushing the guide sleeve further into the primary flow bore to a guide sleeve section that has a second inner diameter (D2) that is larger than the first inner diameter (D1), and allowing the guide sleeve to radially expand to capture the guide sleeve within the guide sleeve section of the primary flow bore.
    Type: Application
    Filed: February 10, 2021
    Publication date: August 11, 2022
    Applicant: Baker Hughes Oilfield Operations LLC
    Inventor: Donavan Brown
  • Publication number: 20220251932
    Abstract: A gas lift module is designed for deployment within a tubing string in a well that has an annular space surrounding the gas lift module and tubing string. A gas lift valve within the gas lift module includes a valve seat, a valve stem configured to abut the valve seat when the gas lift valve is closed, and a variable orifice valve assembly. The variable orifice valve assembly has an orifice chamber, a variable orifice within the orifice chamber, and a retaining sleeve within the orifice chamber. The variable orifice includes a plurality of interconnected plates that are configured to expand or contract together to form a central aperture of varying size and an orifice spring. The retaining sleeve captures the variable orifice in a contracted state when the retaining sleeve is in contact with the variable orifice.
    Type: Application
    Filed: February 8, 2021
    Publication date: August 11, 2022
    Applicant: Baker Hughes Oilfield Operations LLC
    Inventor: Donavan Brown
  • Publication number: 20220220834
    Abstract: A side pocket mandrel is configured for use within a gas lift system deployed in a well that has an annular space surrounding the gas lift system. The side pocket mandrel includes a central body that includes a central bore, a gas lift valve pocket, and a gas lift valve installed within the gas lift valve pocket. The side pocket mandrel may also include a motorized choke valve assembly to selectively cover some or all of an internal tubing port extending between the central bore and the gas lift valve pocket. The side pocket mandrel may also include an automatic closing valve assembly configured to automatically close the gas lift valve port when the gas lift valve is removed from the side pocket mandrel.
    Type: Application
    Filed: January 14, 2022
    Publication date: July 14, 2022
    Applicant: Baker Hughes Oilfield Operations, LLC
    Inventors: Donavan Brown, Tyler Shirk, Stephen Bisset
  • Publication number: 20220145735
    Abstract: A side pocket mandrel for use within a gas lift system is configured to permit the exchange of valve pockets. The side pocket mandrel has a central body, a receiver that is laterally offset from the central body, and a valve pocket that is removably secured to the receiver. The valve pocket can be configured for a threaded connection with the receiver to permit the facilitated exchange of modular valve pockets at the receiver. Gas from the valve pocket can be carried to the central body of the side pocket mandrel through one or more external gas lines or one or more internal gas injection passages.
    Type: Application
    Filed: November 11, 2021
    Publication date: May 12, 2022
    Applicant: Baker Hughes Oilfield Operations LLC
    Inventors: Stephen Bisset, Tyler Shirk, Donavan Brown